留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名
邮箱
手机号码
标题
留言内容
验证码

Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance

LI Xianghu REN Liliang

LI Xianghu, REN Liliang. Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance[J]. 中国地理科学, 2007, 17(4): 357-363. doi: 10.1007/s11769-007-0363-6
引用本文: LI Xianghu, REN Liliang. Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance[J]. 中国地理科学, 2007, 17(4): 357-363. doi: 10.1007/s11769-007-0363-6
LI Xianghu, REN Liliang. Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance[J]. Chinese Geographical Science, 2007, 17(4): 357-363. doi: 10.1007/s11769-007-0363-6
Citation: LI Xianghu, REN Liliang. Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance[J]. Chinese Geographical Science, 2007, 17(4): 357-363. doi: 10.1007/s11769-007-0363-6

Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance

doi: 10.1007/s11769-007-0363-6
基金项目: Under the auspices of National Basic Research Program of China (No.2006CB400502)
详细信息
    通讯作者:

    LI Xianghu.E-mail:lxh8010@yahoo.com.cn

Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance

计量
  • 文章访问数:  984
  • HTML全文浏览量:  4
  • PDF下载量:  1687
  • 被引次数: 0
出版历程
  • 收稿日期:  2007-03-10
  • 修回日期:  2007-09-05
  • 刊出日期:  2007-12-20

Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance

doi: 10.1007/s11769-007-0363-6
    基金项目:  Under the auspices of National Basic Research Program of China (No.2006CB400502)
    通讯作者: LI Xianghu.E-mail:lxh8010@yahoo.com.cn

摘要: Normalized difference vegetation index (NDVI) data, obtained from remote sensing information, are essential in the Shuttleworth-Wallace (S-W) model for estimation of evapotranspiration. In order to study the effect of temporal resolution of NDVI on potential evapotranspiration (PET) estimation and hydrological model performance, monthly and 10-day NDVI data set were used to estimate potential evapotranspiration from January 1985 to December 1987 in Huangnizhuang catchment, Anhui Province, China. The differences of the two calculation results were analyzed and used to drive the block-wise use of the TOPMODEL with the Muskingum–Cunge routing (BTOPMC) model to test the effect on model performance. The results show that both annual and monthly PETs estimated by 10-day NDVI are lower than those estimated by monthly NDVI. Annual PET from the vegetation root zone (PETr) lowers 9.77%–13.64% and monthly PETr lowers 3.28%–17.44% in the whole basin. PET from the vegetation interception (PETi) shows the same trend as PETr. In addition, temporal resolution of NDVI has more effect on PETr in summer and on PETi in winter. The correlation between PETr as estimated by 10-day NDVI and pan measurement (R2= 0.835) is better than that between monthly NDVI and pan measurement (R2 = 0.775). The two potential evapotranspiration estimates were used to drive the BTOPMC model and calibrate parameters, and model performance was found to be similar. In summary, the effect of temporal resolution of NDVI on potential evapotranspiration estimation is significant, but trivial on hydrological model performance.

English Abstract

LI Xianghu, REN Liliang. Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance[J]. 中国地理科学, 2007, 17(4): 357-363. doi: 10.1007/s11769-007-0363-6
引用本文: LI Xianghu, REN Liliang. Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance[J]. 中国地理科学, 2007, 17(4): 357-363. doi: 10.1007/s11769-007-0363-6
LI Xianghu, REN Liliang. Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance[J]. Chinese Geographical Science, 2007, 17(4): 357-363. doi: 10.1007/s11769-007-0363-6
Citation: LI Xianghu, REN Liliang. Effect of Temporal Resolution of NDVI on Potential Evapotranspiration Estimation and Hydrological Model Performance[J]. Chinese Geographical Science, 2007, 17(4): 357-363. doi: 10.1007/s11769-007-0363-6

目录

    /

    返回文章
    返回